Method and apparatus for associating liners with cartons



Jan. 8- 1924.

G. H. BENT I METHOD AND APPARATUS FOR ASSOGIATING LINERS WITH CARTONS I Filed Jan.- 25; 1923 INVENTOR.

Patented Jan. 8, 1924.

I OFFICE.

, GEORGE E. BENT, OF BATTLE CREEK, MICHIGAN.

METHOD AND APP er,

'IUS FOR ASSOCIATING LINERS WITH GARTQ NS.

. Application filed. January 23, 1923. Serial No. 614,428.

To all whom it may concern Be it known that I, GEORGE H. BENT, a citizen of the United States of America, and a resident of Battle Creek, Michigan,

have invented new and useful Improvements in Methods and Apparatus for Associating Liners with Cartons, which invention is fully set forth in the following specification/ This invention relates to a method and apparatus for associating a liner with a carton. As herein shown, this is effected by applying adhesive to a carton liner and, after the liner has been associated with the 1 5 carton, by applying pressure on the carton along the line of the adhesive.

Machinery is ordinarily employed in-the manufacture of lined cartons and also for filling the same with a wide variety of prodnets, due to the enormous consumption of packaged goods and the necessity for lowcost production. When a lined carton is machine-filled a difiiculty is encountered which has not heretofore been successfully as overcome. Because of the thin material from which the liner is formed, the lateral walls of the same bulge inwardly or warp awa from the walls of the carton prior to or d iiring the filling operation with the re- B sult that a portion of the material to be packaged is deposited by the machine in the spaces formed by said warping between the liner walls and the walls of the carton. Frequently, this material, for example cloves,

515 spices and the like, contains an oily substance which will strike through or impregnate the walls of the carton, if filled into said spaces, thus rendering the package unsightly and unsaleable, and nullifying the 0 advantages to be gained by the use of a carton having an innerlining.

An object of this invention is to provide a method and apparatus for applying a small amount of adhesive to a carton liner, prior to its association with a carton, in such a manner that the lateral walls thereof will be maintained in contact with the walls of the carton prior to and during the filling operation, thereby preventing warping/of the liner walls and insuring that the goods to be packaged will not be deposited between the liner and the carton. This objectis accomplished by providing apparatus for automatically moving the liners past mechanism for applying'a small amount of adhesive to the opposite sides of the; same adjacent the lines where it is bent to form flaps for sealing the end of the container, and then conveying the liner, after it has been associated with a carton, past-means for applying pressure on the carton along the line of adhesive.

The invention will be more readily understood by reference to the accompanying drawings, illustrating a sufiicient portion, for descriptive purposes, of one embodiment of the inventive idea. It is to be expressly understood, however, that the drawmgs are for purposes of illustration-only and are not designed as a. definition of the limits of the invention, reference being had for this purpose to Referring to the reference numerals a sprocket wheel, havin a driving connection 2 with some suitab e source of power, mounted on a horizontally disposed shaft the appended claims. drawings, wherein like refer to like parts, 1 is 3 which may be rotatably supported in any Rigidly secured to shaft 3, for rotation therewith, and laterally spaced one from the other, are sprocket wheels 4 of suitablesize and design. for transmitting power to an endless chain or belt. As shown, the latter comprises a pair of endless sprocket-chains 5, having secured thereto in any suitable manner, at proper intervals along their length, and on the outer faces thereof, a plurality of plates 6 having their opposite ends extending for a slight distance beyond the outer sides of the two chains. Secured to the outer faces of plates 6 and preferably centrally thereof, are a plurality of formers 7 constructed of any suitable material and of rectangular cross-section. Formers 7 are of such size that an operative may easily position a liner 8 thereon, though the liners may be placed on the former by the device of my application Sr. No. 503,194,, filed Sept. 26, 1921.

Arranged on either side of the path of movement of formers 7, and at any suitable point along the length of chains 5, are two oppositely disposed and similarly constructed adhesive-applying devices 10 for applying the desired amount of adhesive, such as paste or glue, to two of the walls of the liner. Each of the adhesive a plying devices 10 comprises a semi-cylin rical suitable manner.

' ported in any a diameter as to extend a suitable distance adhesive pct 11 which may be rigidly supdesired manner adjacent endless chains 5. Attached to the outer wall of pot 11, as by means ofiscrews 12, is a bracket 13 having formed in the ends of its laterally extending U-shaped portion, hearing members 14, 14: for receiving and rotatably supporting a shaft 15. Rigidly secured to the outer end of shaft 15 is a sprocket wheel 16 havin a driving connection 17 with any suitabfi source of power. Mounted on shaft 15 for rotation therewith is the vertically disposed disk 18 of such into pot 11 and having engagement on the inner face thereof with a horizontally disp'osed disk 19 mounted on a substantially vertical shaft 20 rotatably supported by a bracket 21 secured to the inner face of pot 11 as by means of screws or bolts 22. A bevel gear 23 is mounted on the lower end of shaft 20 for engagement with a bevel gear 2% rigidly secured to the inner end of horizontal'shaft 15.

Mounted in any suitable way, at a point properly spaced from adhesive devices 10 and farther along in the direction of travel of chains 5, are two similar and oppositely disposed pressure members 25, arranged one on either side of the path of formers 7 and in substantially the same plane as horizontal disks 19, each comprising a pivotally mounted bracket 26 carrying, on the inner end thereof, a roller 27 normally resiliently held in position as by means of a spring 28. 7

While onl one bight of each endless chain 5 has been i lustrated, it will be understood that the opposite bights of the same pass over sprocket-wheels similar to those illustrated at 4, 4.

The operation of the device is as follows: Power is applied to sprocket-wheels 4 through shaft 3, sprocket-wheel 1 and memher 2 in such a manner as to move chains 5 and formers 7 in the direction of the arrows, and simultaneously power is applied to shafts 15 to rotate the same.

Liner 8, associated with formers 7 in any suitable manner, is thus moved 'past adhesive-applying devices 10. 'The adhesive carried in pot 11 is transferred by rotating disk 18 to disk 19,positioned to have rolling contact with and to apply to liner 8 a narrow strip 29 of adhesive on the opposite sides of the liner adjacent to, but slightly above (as viewed in the drawings) thelines 30 along which the liner is folded when the open end of the lined carton is subsequently closed. As the moving formers carry liner 8 clear of disks 19 a carton 31 is associated, by any suitable means with said liner and the two are moved to the point where pressure rollers 27 engage the outer walls of carton 31 and apply ressure to the same along the line of ad esive, thus insuring nesoaee that the walls of the liner will be maintained in contact with the walls of the carton during the subsequent filling operation.

My improved method of associating a liner with a carton may be manually performed, but this results in a greatly increased cost of production due to the time consumed. By employing my improved apparatus, cartons may be lined at the rate of sixty or more per minute.

While a single embodiment of the inventive idea has been illustrated and described with considerable particularity, it is to be expressly understood that the invention is not limited thereto but may receive a variety of mechanical expressions. Reference is therefore to be had to the appended claims vfor a definition ofthe limits of the invention.

- What is claimed is:

1. In a device of the character described, the combination of a former on which liners and cartons are placedone over the other, and means for applying a strip of adhesive to the liner on each side of the same adjacent the line where the carton flaps are 'bent with respect to the carton proper.

2. lln a device of the character described, the combination of a conveyor, a movable former on which liners and cartons are placed one over the other, glue-applying mechanism arranged on either side of the path of the former in position to apply a strip of adhesive to the liner adjacent the line where the carton flaps are bent with respect to the carton proper.

3. In a device of the character described, the combination of a former on which liners and cartons are placed one over the other, means for applying a strip of adhesive to the liner on each side of the same adjacent the line where the carton flaps are bent with respect to the carton proper, and means for applying pressure on the carton along the line of adhesive;

4. lln a device of the character described, the combination of a conveyor, a movable former on which liners and cartons are placed one over the other, glue-applying mechanism arranged on either side of the path of the former in position to apply a strip of adhesive to the liner adjacent the line where the carton flaps are bent with respect to the carton proper, and means for applying pressure on the carton along the line of adhesive.

5. The process of associatin a liner formed of relatively thin mater al with a carton which comprises applying a strip of adhesive to two of the oppositely disposed walls of said lineradjacent to and substantially' parallel to the lines along which the liner is folded to close the lined carton, associating a carton with said liner, and applying pressure .to said carton along the lines as i atinee of the adhesive, in such a manner as to cause the adhesive to maintain the walls of said liner in contact with the walls of said carton during the operation of filling the lined 5 carton.

' 6. The process of associating a liner with a carton which comprises associatinga liner with a former, applying a narrow strip of adhesive to each of two of the oppositely 10 disposed lateral walls of said liner adjacent to and substantially parallel to the line where the carton flaps are bent with respect to the carton proper, associating a carton with said liner on said former, and applying pressure to said carton along the strips of adhesive.

7. A machine for associating a liner with a carton comprising, in combination, a pair of endless chains, a former fixedly secured to said chains, means including a horizontally disposed, rotatable disk for applyinga strip oi adhesive to a liner associated with said former adjacent to and substantially parallel to the line along which the liner is i folded to close the end of the lined carton,

manner as to cause the adhesive to maintain the walls of said liner in contact with the walls of said carton during the operation of filling the lined carton.

8. In a device of thecharacter described, the combination of a'conveyor comprising a pair of endless chains, a former secured to each of said chains on which liners and cartons are associated, adhesive-applying mechanismarranged on either side oi the path of the former in position to apply a strip parallel to the line along which the same is of adhesive to the liner substantially folded when closing the lined carton, and V means for applying pressure on the carton along the line of the adhesive strip including a pivotally mounted bracket, and a roller positioned on the inner end of said bracket.

In testimony whereof l have signed this specification.

GEORGE 

